A Self-Consistent Field Study of Interfacial Dynamics in Unentangled Homopolymer Fluids in a Sheared Channel

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dc.creatorMihajlovic, Maja
dc.creatorLo, Tak Shing
dc.creatorShnidman, Yitzhak
dc.date2004-11-10
dc.date.accessioned2026-07-07T03:02:02Z
dc.date.available2026-07-07T03:02:02Z
dc.descriptionIn a preceding paper, we have presented a general lattice formulation of the dynamic self-consistent field (DSCF) theory for inhomogeneous, unentangled homopolymer fluids. Here we apply the DSCF theory to study both transient and steady-state interfacial structure, flow and rheology in a sheared planar channel containing either a one-component melt or a phase-separated, two-component blend. We focus here on the case that the solid-liquid and the liquid-liquid interfaces are parallel to the walls of the channel, and assume that the system has translational symmetry within planes parallel to the walls. This symmetry allows us to derive a simplified, quasi-one-dimensional (quasi-1D) version of the DSCF evolution equations for free segment probabilities, momentum densities, and the ideal-chain conformation tensor. Numerical solutions of the quasi-1D DSCF equations are used to study both the transient evolution and the steady-state profiles of composition, density, velocity, chain deformation, stress, viscosity and normal stress within layers across the sheared channel. Good qualitative agreement is obtained with previously observed phenomena.
dc.identifierhttps://arxiv.org/abs/cond-mat/0411288
dc.identifierhttp://arxiv.org/abs/cond-mat/0411288
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/25257
dc.subjectSoft Condensed Matter
dc.subjectMaterials Science
dc.subjectStatistical Mechanics
dc.titleA Self-Consistent Field Study of Interfacial Dynamics in Unentangled Homopolymer Fluids in a Sheared Channel
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